Results 71 to 80 of about 540,315 (294)

Characterization of the high-pressure superconductivity in the Pnma phase of calcium

, 2012
The thermodynamic parameters of the superconducting state in calcium under the pressure at 161 GPa have been calculated within the framework of the Eliashberg approach.
Aftabuzzaman, Allen, Allen, Andersson, Arapan, Bardeen, Beach, Carbotte, Carbotte, Dunn, Errea, Fujihisa, Ishikawa, Jarosik, Jarosik, Jishi, Lei, Luders, Mao, McMillan, Morel, Nakamoto, Nakamoto, Okada, Olijnyk, Profeta, Sakata, Savrasov, Savrasov, Szczęśniak, Szczęśniak, Szczęśniak, Szczęśniak, Szczęśniak, Szczęśniak, Szczęśniak, Teweldeberhan, Xie, Yabuuchi, Yabuuchi, Yao, Yin   +41 more
core   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

Expected Behavior of Quantum Thermodynamic Machines with Prior Information

, 2012
We estimate the expected behavior of a quantum model of heat engine when we have incomplete information about external macroscopic parameters, like magnetic field controlling the intrinsic energy scales of the working medium.
George Thomas, H. Jeffreys, Ramandeep S. Johal   +2 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Encapsulation Mechanism of Oxyresveratrol by β-Cyclodextrin and Hydroxypropyl-β-Cyclodextrin and Computational Analysis

Molecules, 2017
In this study, the encapsulation mechanism of oxyresveratrol and β-cyclodextrin (β-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) was studied. As this research shows, oxyresveratrol and two cyclodextrins (CDs) were able to form inclusion complexes in a 1:
Jianfei He, Zong-Ping Zheng, Qin Zhu, Fengxian Guo, Jie Chen   +4 more
doaj   +1 more source

Molecular structural order and anomalies in liquid silica

, 2002
The present investigation examines the relationship between structural order, diffusivity anomalies, and density anomalies in liquid silica by means of molecular dynamics simulations.
A. Scala, A. Z. Panagiotopoulos, Athanassios Z. Panagiotopoulos, B. W. H. Van Beest, C. A. Angell, C. A. Angell, C. A. Angell, C. A. Angell, C. A. Angell, D. J. Lacks, D. J. Lacks, F. H. Stillinger, F. Sciortino, G. D. Mukherjee, G. J. Kramer, H. J. C. Berendsen, I. Saika-Voivod, I. Saika-Voivod, J. Horbach, J. Horbach, J. R. Errington, J. R. Rustad, K. Ito, K. Vollmayr, M. M. Roberts, M. Scott Shell, N. R. Keskar, O. Mishima, O. Mishima, P. Jund, P. L. Chau, Pablo G. Debenedetti, R. G. Dellavalle, R. G. DellaValle, R. J. Speedy, S. D. Bembenek, S. Torquato, S. Tsuneyuki, S. Tsuneyuki, T. M. Truskett, Y. Guissani   +40 more
core   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Quasiparticle entropy in superconductor/normal metal/superconductor proximity junctions in the diffusive limit

, 2017
We discuss the quasiparticle entropy and heat capacity of a dirty superconductor-normal metal-superconductor junction. In the case of short junctions, the inverse proximity effect extending in the superconducting banks plays a crucial role in determining
Carrega, Matteo, Giazotto, Francesco, Strambini, Elia, Virtanen, Pauli, Vischi, Francesco   +4 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source